This is a false-positive and we've notified the Antivirus developers.
Why do you think it is a false positive, have you installed the game and let this "False Positive" virus do it's dirty work. I have found that the virus is real and does all the things that that backdoor.sdbot supposedly does. Check your registry and check out the knowlledge base regarding that virus, I have found that the virus appears to be the real McCoy !!!!!!